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  1. Lou C

    Dead battery after sitting on trailer

    Battery switch is a good start. The only thing that should be powered with it OFF is the auto bilge switch/pump. At the beginning of the season it is a good idea to make sure that the alternator is actually charging the batteries and also check for any parasitic draws, with older boats you never...
  2. Lou C

    Mercruiser 260 Backfire Through Exhaust

    Well I can't say what happens in most cases but my block was fine when both my HGs blew and both heads had cracks. My overheat was BAD.... You can get the shop to check out your heads, if they are OK do a valve job at the same time. For the block if you're not wanting to pull it, I think there's...
  3. Lou C

    4.3 mercruiser overheating

    I change the impeller every 3 seasons, you can see small amounts of wear starting at that point.
  4. Lou C

    4.3 mercruiser overheating

    Well it looks like you engine has the warm manifold set up where the manifolds don’t get cooling water till the thermostat opens; the elbows get cooling water all the time. They are fed by separate hoses. In the diagram they show the cool manifolds set up where the manifolds & elbows are fed by...
  5. Lou C

    outdrive stored down

    For winter storage I keep mine down, when its on the mooring I keep it about half way up due to low water at low tide. I have found that keeping it down over winter makes the OE bellows last a long time. Last one went 11 years before I noticed small cracks in the folds meaning its time to...
  6. Lou C

    Mercruiser 260 Backfire Through Exhaust

    I'd be concerned about all that white smoke! Did you have that before the overheat? When you did the HGs did you have the cyl heads checked out by a machine shop? I had a similar problem (overheat, followed by blown HGs a few seasons later) a few years back and the machine shop found that the...
  7. Lou C

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    Well what I'd do is get the problem solved and AS SOON AS YOU DO, put it up for sale. Buy a boat with a Mercury, Yamaha or Suzuki outboard, and leave those problems behind you. There is no question despite their complexity that modern outboards are more reliable. The ONLY reason why, I still...
  8. Lou C

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    I think it depends on your boating area, if you boat in a lot of shallow sandy water or muddy water then a back flush might be helpful because if you are running in like 3-4 feet of water you can suck up stuff that will cause problems. IIRC the SX drives actually had a flush out port you could...
  9. Lou C

    Twin Merc. 6.2 Mags with Bravo 3 - EMCT Temperature Overheat Fault - Port side Manifolds (Only)

    here's what my old OMC batwings looked like after 5.5 seasons in our salt water. Not to bad, one port is clogged. next pic is the later style 2 piece exhaust, see how much larger the cooling ports are....but they run at exactly the same temps....at idle about 100, hottest they get is about 135*...
  10. Lou C

    2006 Volvo penta 3.0 180 horizon bogging down

    Fuel pump pressure & volume & anti siphon valve on the fuel tank…
  11. Lou C

    Twin Merc. 6.2 Mags with Bravo 3 - EMCT Temperature Overheat Fault - Port side Manifolds (Only)

    Here in the salt I’ve replaced the exhaust every 5-7 seasons & have avoided problems with overheating & clogging. On my old OMC one piece exhaust the ports were pretty small & started to clog between years 5-6. The later style center riser exhaust I replaced them with has much larger ports so...
  12. Lou C

    Runs great on muffs but not in lake

    Water is water your problem is no load vs load… yes the back pressure of water on the exhaust is an issue which is why final carb adjustments should be done in the water. The anti siphon valve is the barbed fitting on the tank that the fuel line attaches to. It had a spring loaded ball inside...
  13. Lou C

    Runs great on muffs but not in lake

    Fuel pump pressure? Anti siphon valve on the gas tank? Fuel tank vent?
  14. Lou C

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    safety & health involve more than just one thing....yes clean air is a good thing...I am old enough to recall the days before auto engines had any emission controls and LA was under smog alerts all the time... however, think about how dangerous it can be, to have a raw water flow failure on an...
  15. Lou C

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    After examining those diagrams, you can see that there are feed hoses (part # 31) from the engine thermostat housing to the manifold and return hoses (part #17) back to the H/E. So that looks like a full system to me...
  16. Lou C

    Alpha One II grinds in reverse

    Sounds like you’re not getting enough travel when shifting into reverse. The key with dog clutch shift systems is to get equal travel on both sides of neutral. Same thing on my OMC Cobra. You want this fixed right away because the grinding will wear down the clutch dog & reverse gear to the...
  17. Lou C

    port side exhaust elbow over heating.

    Might have to pull the drive to find it could be in the exhaust housing or even inside the exhaust pssssge in the drive.
  18. Lou C

    Volvo Penta Drive Belt - Lots of dust and quickly wearing??

    If you slow the video down it appears that the edge of the belt is contacting the tensioner at the 6-9 second mark. That suggests that something is out of alignment or the tensioner itself is bad.
  19. Lou C

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    https://www.volvopentastore.com/Closed-Cooling-System-Heat-Exchanger-Block-Exhaust/dm/store_id.366--view_id.1225287 Found this, it appears that it is a full closed cooling system, the return from the manifolds back to the H/E is via an adapter on the back side of the manifold where you can't see...
  20. Lou C

    Concerned about Hull Config / Cramped Engine Bay

    My 88 F/W doesn’t have a panel like that and all these years it’s been fine; I see what you’re saying but that is just a horrible design. The manufacturer should be ashamed! Forcing the boat owner to pay for pulling the engine to change a starter? Engineering malpractice I call it. Walk away...
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